Place the strap around your neck, so the crossbar is in front of you. Here are detailed steps on how to properly use one: To use an arm blaster, you put the strap around your neck, rest the backs of your upper arms against the crossbar/plate, and perform a curl or tricep press down without allowing your upper arms to change positions.īy limiting your upper arms’ ability to move forward and backward at the shoulder, you ensure only your bicep works during elbow flexion (curling a weight toward your body) and only your tricep works during elbow extension (straightening out your arm at the elbow). It goes over your shoulders like a front pack, and your arms sit in front of a horizontal bar that keeps your upper arm in the same spot the whole time.Ĭheck out an arm blaster in action in this Instagram post from DMoose: The arm blaster is usually made of steel or aluminum, sometimes with additional padding to make it more comfortable for the wearer. Some lifters will tell themselves to “lock their elbows” at their hips to prevent shoulder involvement in curl and press down variations. These two exercises call for you to keep your shoulders still and let either the bicep or the tricep do its job to flex or extend your arm at the elbow joint. The arm blaster is basically a wearable preacher bench designed to isolate your biceps for curls and triceps for press downs.
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